A next-generation combat drone, for example, might loiter for hours above a potential target on elongated, low-drag wings.
举例来说，新一代无人战斗机就可运用外张的低阻力机翼，在预定目标上空盘旋数小时。
A next-generation combat drone, for example, might loiter for hours above a potential target on elongated, low-drag wings.
举例来说，新一代无人战斗机就可运用外张的低阻力机翼，在预定目标上空盘旋数小时。
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